109 resultados para groundwater hydrology


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"July 13, 2004; CERCLIS Number NYSFN0204234."

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"November 30, 2005; CERCLIS No. NYD047650197."

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"December 1988."--Cover.

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Wetlands are extremely valuable natural features that have decreased significantly in number over time in Illinois and the United States ... Their important functions include flood protection, water conservation in times of drought, groundwater recharge, improvement of water quality through sediment reduction and contaminant removal, and providing habitat for native animals and plants, including many sensitive and state-listed threatened and endangered species ... Due to a federal "no net loss" policy on wetlands adopted through executive order by President George H. Bush in 1990, as well as a prevailing heightened interest in conservation in general, there is currently considerable interest in the restoration and creation of wetlands. Both Section-404 of the Clean Water Act of 1972 and the Swampbuster Provision of the Food Securities Act of 1985 require compensation or mitigation for the loss of wetlands. A number of federal and state programs such as Section 319 of the Clean Water Act and the Conservation Reserve Program within the Natural Resources Conservation Service (NRCS) encourage wetland restoration and creation. In addition, various conservation organizations, such as The Nature Conservancy and Ducks Unlimited are very active in wetland restoration. Despite wetland restoration efforts and the national goal of no net loss, wetlands and wetland functions continue to be lost due to degradation of existing wetlands ... Unfortunately, no reliable information exists on the quality of existing wetlands or on trends in wetland quality over time ... The functional quality of existing wetlands is likely decreasing in many areas due to the combined effects of habitat fragmentation, alteration of hydrology, invasive species, and continued input of nutrients and pollutants. Furthermore, it is still debatable whether created or restored wetlands can adequately replace the suite of ecological functions provided by natural wetlands ... and the failure of many wetland compensation projects contributes to a continued national net loss of wetland functions ... The need for post-construction site monitoring and assessment of created and restored wetlands to evaluate functional success is widely recognized. ... At this time, there is little agreement on how to assess the success on quality of wetland restorations or creations.

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"October 2007."

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"June 5, 2009"

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"December 6, 1993."

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Soil contamination on the Elm Street site is located mainly underneath and near the building foundation. Groundwater contamination appears to extend beyond the property boundaries to the west towards the Fox River, which is approximately 1100 feet west of the site. The groundwater contamination is located in a mixed industrial, commercial and residential area. It is not clear at this point whether there may be multiple sources of contamination in the area. Currently the public water supply is only available to some properties along Route 120, where there is a water main in place. Most of the homes and businesses in the area use private wells for their water source.

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Contamination in soil and groundwater was found during an investigation of a property located on the east side of the Fox River in McHenry, at 3004 W. Elm Street (Route 120) during 2003-2006. The property, currently owned by Inverse Investments, Inc., is enrolled in an Illinois Environmental Protection Agency (Illinois EPA) cleanup program. It is the location of a car rental establishment. Gem Cleaners occupied the site from 1970 to 1977, after which it was occupied by a carpet dealer, an automotive repair facility, and a tire store. Historic use of solvents at the former dry cleaner location has resulted in contamination of the soil and groundwater with chlorinated organic compounds.